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Brittle intermetallic compound makes ultrastrong low-density steel with large ductility

Author

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  • Sang-Heon Kim

    (Graduate Institute of Ferrous Technology, POSTECH, Pohang 790-784, South Korea)

  • Hansoo Kim

    (Graduate Institute of Ferrous Technology, POSTECH, Pohang 790-784, South Korea)

  • Nack J. Kim

    (Graduate Institute of Ferrous Technology, POSTECH, Pohang 790-784, South Korea)

Abstract

Alloying steel with aluminium improves the material’s strength-to-weight ratio, but the resulting formation of brittle intermetallic compounds within the steel matrix reduces its ductility; here the morphology and distribution of the intermetallic precipitates are controlled to alleviate this problem.

Suggested Citation

  • Sang-Heon Kim & Hansoo Kim & Nack J. Kim, 2015. "Brittle intermetallic compound makes ultrastrong low-density steel with large ductility," Nature, Nature, vol. 518(7537), pages 77-79, February.
    • Handle: RePEc:nat:nature:v:518:y:2015:i:7537:d:10.1038_nature14144
    DOI: 10.1038/nature14144
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    Cited by:

    1. Mingliang Han & Yuan Wu & Xiaobin Zong & Yaozu Shen & Fei Zhang & Hongbo Lou & Xiao Dong & Zhidan Zeng & Xiangyang Peng & Shuo Hou & Guangyao Lu & Lianghua Xiong & Bingmin Yan & Huiyang Gou & Yanping , 2024. "Lightweight single-phase Al-based complex concentrated alloy with high specific strength," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Bin Xing & Timothy J. Rupert & Xiaoqing Pan & Penghui Cao, 2024. "Neural network kinetics for exploring diffusion multiplicity and chemical ordering in compositionally complex materials," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    3. Chengyi Yu & Kun Lin & Xin Chen & Suihe Jiang & Yili Cao & Wenjie Li & Liang Chen & Ke An & Yan Chen & Dunji Yu & Kenichi Kato & Qinghua Zhang & Lin Gu & Li You & Xiaojun Kuang & Hui Wu & Qiang Li & J, 2023. "Superior zero thermal expansion dual-phase alloy via boron-migration mediated solid-state reaction," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    4. Zhangwei Wang & Wenjun Lu & Fengchao An & Min Song & Dirk Ponge & Dierk Raabe & Zhiming Li, 2022. "High stress twinning in a compositionally complex steel of very high stacking fault energy," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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